Round components are not always simple. Bushings, adapters, fittings, rings, threaded details, and short-run replacement parts may also need milled flats, cross holes, grooves, or other non-round features.
CNC turning and Y-axis lathe work can help combine operations when the part geometry is a fit. That can reduce extra setups, keep features aligned, and simplify communication for buyers who need a dependable machined component without unnecessary handoffs.
The best first step is to send a drawing, sample, or photo with the material, quantity, critical dimensions, and finish requirement.